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Comparison: 2015 Mercedes-Benz C63 AMG vs. 2015 BMW M3

Automobile Magazine test drives and compares the 2015 Mercedes-Benz C63 AMG and 2015 BMW BMW M3. The two powerful sedans are the benchmark in their segment and head-to-head comparisons are inevitable.

The competitor to the F80 BMW M3 launches with two power variants coming from a 4.0 liter V8 bi-turbocharged engine that delivers 470 hp and 650Nm (479 lb-ft) in the base model, and 503 hp and 700Nm (516 lb-ft) in the C63 S AMG. This is the same engine found on the Mercedes-AMG GT sports coupe. Automobile uses the entry-level C63 AMG for this test.

Power is sent to the rear wheels via a seven-speed AMG Speedshift automatic transmission.

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From 0 to 100 km/h (62 mph), it only takes 4.1 seconds for the C63 S AMG and 4.2 seconds for the base model. Both cars are limited to 250 km/h (155 mph).

The F80 BMW M3 features the S55 3.0 liter inline-six TwinPower engine producing 425 horsepower and 406 lb-ft of torque. The power is sent to the rear-wheels via a six-speed or an optional 7-speed M DCT transmission. For comparison, with the seven-speed DCT, the M3 and M4 need 4.1 seconds from 0 to 100 km/h, switching to manual speed, the two cars need 4.3 seconds

Top speed is governed at 155 mph for both the BMW and the Mercedes. Also, Mercedes barely beats BMW in fuel economy, hitting 29 mpg combined on the European cycle versus 28 mpg for the M3. The Mercedes will start at $64,825 in the States, $1,875 more than the BMW.

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